circulatory

includes cardiac or central circulatory failure and peripheral circulatory failure. Although the mechanisms, causes and clinical syndromes are different the pathogenesis is the same, the circulatory system fails to maintain the supply of oxygen and other nutrients to the tissues and to remove the carbon dioxide and other metabolites from them. The failure may be hypovolemic, distributive.

circulatory response

changes in the cardiac and vascular functions in response to such factors as emotional stress, physical exercise, temperature change.

the major system concerned with the movement of blood and lymph; it consists of the heart and blood vessels. The circulatory system transports to the tissues and organs of the body the oxygen, nutritive substances, immune substances, hormones and chemicals necessary for normal function and activities; it also carries away waste products and carbon dioxide. It helps to regulate body temperature and helps maintain normal water and electrolyte balance.

The rate of blood flow through the vessels depends upon several factors: force of the heartbeat, rate of the heartbeat, venous return and control of the arterioles and capillaries by chemical, neural and thermal stimuli.

Due to the small number of infants who had deep hypothermic circulatory arrest during the surgical procedure, it was not possible to determine the influence of this variable on postoperative oral feeding difficulty.

These include new hypothermia techniques, new priming protocols of the coronary bypass pump, the use of retrograde cerebral perfusion, the use low-flow cardiopulmonary bypass instead of circulatory arrest, and the use of aprotinin at the end of bypass surgery Aprotinin is a serine protease inhibitor thought to reduce the risk of stroke.

SAN FRANCISCO -- Therapeutic hypothermia after cardiac arrest appears to be of particular benefit in patients with ventricular fibrillation and those with a short duration of circulatory arrest, according to a poster presented by Dr.

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